Phantasy Star IV is apparently only different from the US final by a watermark identifying the original intended recipient of the proto. Not sure if this is database inclusion worthy.

Ninja Gaiden 2 "Sample 36". This sounds like the same version that's been on the Internet since the early 2000s. (normally ends after level 5, level 6 graphics blanked out, final boss has a "NOT FOR RESALE" graphic hacked in)